TraceCommand.h

/*
 * Copyright (c) 2008-2014, Pedigree Developers
 *
 * Please see the CONTRIB file in the root of the source tree for a full
 * list of contributors.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
 
#ifndef TRACECOMMAND_H
#define TRACECOMMAND_H
 
#include "pedigree/kernel/debugger/Backtrace.h"
#include "pedigree/kernel/debugger/DebuggerCommand.h"
#include "pedigree/kernel/debugger/DebuggerIO.h"
#include "pedigree/kernel/debugger/Scrollable.h"
#include "pedigree/kernel/processor/state_forward.h"
#include "pedigree/kernel/processor/types.h"
#include "pedigree/kernel/utilities/StaticString.h"
 
class TraceCommand : public DebuggerCommand {
 public:
  TraceCommand();
 
  ~TraceCommand();
 
  void autocomplete(const HugeStaticString& input, HugeStaticString& output);
 
  void setInterface(int nInterface);
 
  bool execute(const HugeStaticString& input, HugeStaticString& output, InterruptState& state,
               DebuggerIO* screen);
 
  const NormalStaticString getString() {
    return NormalStaticString("trace");
  }
 
  int execTrace() {
    return m_nExec;
  }
 
 private:
  class Disassembly : public Scrollable {
   public:
    Disassembly(InterruptState& state);
    ~Disassembly() {}
    const char* getLine1(size_t index, DebuggerIO::Colour& colour, DebuggerIO::Colour& bgColour);
    const char* getLine2(size_t index, size_t& colOffset, DebuggerIO::Colour& colour,
                         DebuggerIO::Colour& bgColour);
    size_t getLineCount();
 
   private:
    size_t m_nInstructions;
    uintptr_t m_nFirstInstruction;
    uintptr_t m_nIp;
    size_t m_LastLine;
    uintptr_t m_LastInstructionLocation;
  };
 
  class Registers : public Scrollable {
   public:
    Registers(InterruptState& state);
    ~Registers() {}
    const char* getLine1(size_t index, DebuggerIO::Colour& colour, DebuggerIO::Colour& bgColour);
    const char* getLine2(size_t index, size_t& colOffset, DebuggerIO::Colour& colour,
                         DebuggerIO::Colour& bgColour);
    size_t getLineCount();
 
   private:
    InterruptState& m_State;
  };
 
  class Stacktrace : public Scrollable {
   public:
    Stacktrace(InterruptState& state);
    ~Stacktrace() {}
    const char* getLine1(size_t index, DebuggerIO::Colour& colour, DebuggerIO::Colour& bgColour);
    const char* getLine2(size_t index, size_t& colOffset, DebuggerIO::Colour& colour,
                         DebuggerIO::Colour& bgColour);
    size_t getLineCount();
 
   private:
    Backtrace m_Bt;
  };
 
  void drawBackground(size_t nCols, size_t nLines, DebuggerIO* pScreen);
 
  int m_nExec;
  int m_nInterface;
};
 
#endif